Efrain A. Marcantoni, M.D.
NPI 1053387993ActiveIndividual· Internal Medicine· Ciales, PR
Internal Medicine (M.D.) in Ciales, Puerto Rico, trained at University of Puerto Rico School of Medicine (class of 1982). Part D covered 11,714 prescriptions written in 2024, 94% of them generic. Merck Sharp & Dohme LLC was the largest of 2 companies reporting payments in 2025, $86.39 in all, mostly food and beverage.
Overview
| NPI | 1053387993 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 28, 2006 |
| Last updated in NPPES | Mar 17, 2025 |
| Certified by provider | Mar 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 7712 | PR |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (PR) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 11,714 · 14,204 30-day fills |
|---|---|
| Patients | 251 |
| Total drug cost | $219,665 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Puerto Rico School of Medicine |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Internal Medicine |
Industry payments (Open Payments)
- 2025$86.39 · 2 payments from 2 companies
- 2024$17.12 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $62.98 | 1 |
| Bayer Puerto Rico Inc. | $23.41 | 1 |
What the 2025 payments were for
- Food and Beverage$86.39 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine providers in Ciales
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- 1336112895